Question

You decide to roll a 0.10-kgkg ball across the floor so slowly that it will have a small momentum and a large de Broglie wavelength.If you roll it at 1.4×10−3 m/s, what is its wavelength?Express your answer to two significant figures and include the appropriate units.

Answer 1

Given data

*The given mass is m = 0.10 kg

*The given speed is v = 1.